742443751730 has 8 divisors (see below), whose sum is σ = 1336398753132. Its totient is φ = 296977500688.

The previous prime is 742443751663. The next prime is 742443751741. The reversal of 742443751730 is 37157344247.

It can be written as a sum of positive squares in 2 ways, for example, as 739742766889 + 2700984841 = 860083^2 + 51971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37122187577 + ... + 37122187596.

Almost surely, 2^742443751730 is an apocalyptic number.

742443751730 is a deficient number, since it is larger than the sum of its proper divisors (593955001402).

742443751730 is a wasteful number, since it uses less digits than its factorization.

742443751730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74244375180.

The product of its (nonzero) digits is 1975680, while the sum is 47.

The spelling of 742443751730 in words is "seven hundred forty-two billion, four hundred forty-three million, seven hundred fifty-one thousand, seven hundred thirty".